www-emu/pyboard_demos.py: Add and improve pyboard demos.

flowergrass · flowergrass · commit ff3d6faaac1f · 2017-06-19T18:31:05.000+10:00
diff --git a/www-emu/pyboard_demos.py b/www-emu/pyboard_demos.py
@@ -1,33 +1,70 @@
 # Hello World!
 # hello world!
+
 print('hello world')
 #####
 # Big Integer
 # bignum
+
 print(1 << 1000)
 #####
 # Assembly
 # inline assembler
+
 @micropython.asm_thumb
 def asm_add(r0, r1):
     add(r0, r0, r1)
 print(asm_add(1, 2))
 #####
 # Switch
-# push the USR button on the pyboard to turn the switch on!
+# push the USR button on the pyboard to flash the LEDs!
 # try using the reset button on the pyboard to quit this script!
 # switch callback not yet supported.
+
+import time
 import pyb
-sw = pyb.Switch()
-b = sw()
+
 while True:
-    s = sw()
-    if b != s:
-        print(s)
-    b = s
+    if pyb.Switch().value():
+        pyb.LED(1).on()
+    else:
+        pyb.LED(1).off()
+    time.sleep_ms(50)
+
 #####
 # LEDs
-# there are four LEDS numbered 1 to 4
+# four LEDS numbered 1 to 4
+
+import time
 import pyb
+
 for i in range(1000):
     pyb.LED((i%4) + 1).toggle()
+    time.sleep_ms(100)
+#####
+# Time
+# the time module is utime, a specialized MicroPython library
+# sleep will break the clock speed
+# dates not yet supported
+
+import time
+
+print(time.ticks_ms())
+
+time.sleep_ms(1000)
+
+print(time.ticks_us())
+
+time.sleep_us(1000000)
+#####
+# Math
+# a subset of the Python Math library
+
+import math
+import cmath
+
+print(math.sqrt(5))
+print(math.log10(100))
+print(math.sin(12345) ** 2 + math.cos(12345) ** 2)
+print(math.cosh(1) ** 2 - math.sinh(1) ** 2)
+print(cmath.polar(1 + 1j))
